We have now published our Supplementary Draft Decision on Marinus Link's Stage 1, Part B (Construction cost) proposal.
Supplementary Draft Decision
AER Supplementary Draft Decision - Marinus Link Stage 1, Part B (Construction costs) - November 2025
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AER Supplementary Draft Decision - Marinus Link Stage 1, Part B (Construction costs) Transmission Determination 2025-30 - Appendix A: Cost pass through definitions
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Models
AER - Supplementary Draft Decision - Marinus Link - Stage 1 Part B - Regulatory financials model - November 2025
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Consultant Report
EMCa: Assessment of proposed risk allowance expenditure - Marinus Link FINAL v3 [PUBLIC]
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Exchange of Letters
MLPL Letter to AER - EMCa Report - 25 November 2025
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AER Letter in response to MLPL - EMCa Report - 27 November 2025
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Public Forum
On 11 December 2025 the AER hosted a public forum following publication of the Supplementary Draft Decision.
Public Forum - Supplementary Draft Decision - 11 December 2025
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Marinus Link - Response to Supplementary Draft Decision
Cover Letter - MLPL Response to Supplementary Draft Decision_Redacted PUBLIC
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MLPL Response to AER Supplementary Draft Decision_Redacted PUBLIC
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Attachment 1 - Detailed Response on Support Activities Expenditure_Redacted PUBLIC
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Attachment 2 - E3 Advisory Report - Response to AER on Risk Allowance_Redacted PUBLIC
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Attachment 3 - Aurecon Response to Supplementary Draft Decision_Redacted PUBLIC
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Attachment 4 - Incenta Economic Consulting Memo on the Capital Expenditure Sharing Scheme PUBLIC
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Confidentiality Information Response to Supplementary Draft 20251222 - PUBLIC
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Submissions
Submissions in response to the Supplementary Draft Decision closed on 19 December 2025.
TMEC - Submission to AER on Marinus Link Supplementary Draft Decision - December 2025
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ENA - Submission to AER on Marinus Link Supplementary Draft Decision - December 2025
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Save Our Surroundings Riverina - Submission to AER on Marinus Link Supplementary Draft Decision - December 2025
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